MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d4b4aa48fb15887d92750e5bcec1a9f2535860f0b6fffba8008a332c72a27b84. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
AgentTesla
Vendor detections: 10
| SHA256 hash: | d4b4aa48fb15887d92750e5bcec1a9f2535860f0b6fffba8008a332c72a27b84 |
|---|---|
| SHA3-384 hash: | d2d8650fdf068b7d1d8545eb6d738e9a9b34548e1bc7bf868b316a2d4f74a13ebc431a197952c858f9afc1607c85228f |
| SHA1 hash: | c12f7f43d76a198d851411211c7fa790091ea269 |
| MD5 hash: | 4286551afc948f07984e7597f5e6c9a7 |
| humanhash: | network-undress-maine-robert |
| File name: | Statement of Account.doc |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 956'116 bytes |
| First seen: | 2020-12-23 18:40:09 UTC |
| Last seen: | Never |
| File type: |  doc |
| MIME type: | text/rtf |
| ssdeep | 24576:nT16cEDWDkO1ygS57rS65kkm085SSW34mbCzW:u |
| TLSH | A415BFF876047CD6266F476BDE96ACDD13B6266389CBA8CD8064BBC30563375FE02805 |
| Reporter |  abuse_ch |
| Tags: | AgentTesla doc |
abuse_ch
Malspam distributing unidentified malware:HELO: modaae.gr
Sending IP: 103.99.1.130
From: Info <info@modaae.gr>
Subject: Fw Statement of Account
Attachment: Statement of Account.doc
Office OLE Information
This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.
OLE dump
Intelligence
File Origin
# of uploads :
1
# of downloads :
759
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Statement of Account.doc
Verdict:
Malicious activity
Analysis date:
2020-12-23 18:42:21 UTC
Tags:
exploit CVE-2017-11882 loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process by context flags manipulation
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Antivirus detection for URL or domain
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2020-12-23 18:41:04 UTC
AV detection:
20 of 48 (41.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Executes dropped EXE
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | INDICATOR_RTF_EXPLOIT_CVE_2017_11882_4 |
|---|---|
| Author: | ditekSHen |
| Description: | detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882 |
| Rule name: | INDICATOR_RTF_MalVer_Objects |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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